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LIT-C1025-E03

ELECTRONIC THERMOSTAT: C1025

FOR MODULATING

ELECTRIC HEAT APPLICATIONS

0 to 10 Vdc modulating output

Vdc pulsed modulating output

Room or supply control applications

DESCRIPTION

The C1025 series thermostats are microcomputer-based,

proportional and integral (PI) devices with one analog 0 to 10

Vdc output and one Vdc time proportioning pulsed output.

The analog 0 to 10 Vdc modulating output can control the

room or supply temperature by modulating directly a 0 to 10

Vdc SCR power controller.

The Vdc pulsed output can control the room or supply

temperature by modulating directly 4-32 Vdc triggered solid

state relays ( SSR’s ) using a time proportioning control

algorithm on a 1 second time cycle.

The thermostats also contain two dip switch which adjust the

following parameters :

• Room or supply control applications

• Internal or external remote sensor

Type of output Modulating devices for heating

Modulating analog

0 to 10 Vdc output

SCR’s power controls

Vdc pulsed output 4-32 Vdc triggered SSR’s

HOW TO ORDER

C1025 -

↓

01 = °F scale

↓

02 = °C scale

Notes: Order remote S61 sensors separately.

Vertical covers are standard.

DIMENSIONS

SPECIFICATIONS

Operating Conditions: -30 °C to 50 °C ( -22 °F to 122 °F )

0% to 95% R.H. non-condensing

Sensor: Local 47 K NTC thermistor

Resolution: ± 0.1 °C ( ± 0.2 °F )

Control accuracy: ± 0.2 ° C ( ± 0.4 °F ) ( calibrated )

Ranges: C1025-02: 10 °C to 32 °C

C1025-01: 50 °F to 90 °F

Proportional band for room

temperature control ( S1 = 0 ): 1.8°C ( 3.2°F )

Proportional band for supply

temperature control ( S1 = 1 ): 28°C ( 50°F )

Analog 0 to 10 Vdc output:

0 to 10 Vdc into 2KΩ resistance min.

5 mA max at 10 Vdc

Vdc pulsed output: 20 mA max at 8 Vdc.

Power: 24 Vac -15%, +10% 50/60 Hz; 2 VA

32 mm

( 71 mm )

2.8"

1.275"

( 83 mm )

3.275"

SECURITY SCREW

OR FROM BACK

FROM TOP

WIRING

BASE

( 114 mm )

4.5"

1 2 3 4

Shrnutí obsahu

Strany 1 - ELECTRIC HEAT APPLICATIONS

LIT-C1025-E031ELECTRONIC THERMOSTAT: C1025FOR MODULATINGELECTRIC HEAT APPLICATIONS0 to 10 Vdc modulating outputVdc pulsed modulating outputRoom or sup

Strany 2

2ANALOG 0 TO 10 Vdc MODULATING OUTPUT The analog 0 to 10 Vdc modulating output can control theroom or supply temperature by modulating direc

Strany 3 - SETPOINT DIAL

3DIP SWITCH ADJUSTMENTS PER APPLICATIONS S1 APPLICATIO

Strany 4 - 028-0071 LIT-C1025-E03

4Room Temperature Control With:0 to 10 Vdc SCR Power ControllerDip switch position S1 S2Heating application 0 1Supply Temperature Control With:Remote

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